package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.constant.RedisConstant;
import com.atguigu.lease.common.exception.LeaseException;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.utils.JwtUtil;
import com.atguigu.lease.model.entity.SystemUser;
import com.atguigu.lease.model.enums.BaseStatus;
import com.atguigu.lease.web.admin.mapper.SystemUserMapper;
import com.atguigu.lease.web.admin.service.LoginService;
import com.atguigu.lease.web.admin.vo.login.CaptchaVo;
import com.atguigu.lease.web.admin.vo.login.LoginVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.wf.captcha.SpecCaptcha;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Service
public class LoginServiceImpl implements LoginService {
@Autowired
private StringRedisTemplate redisTemplate;
    @Autowired
    private SystemUserMapper systemUserMapper;

    @Override
    public CaptchaVo getCaptcha() {
        SpecCaptcha specCaptcha = new SpecCaptcha();
        specCaptcha.setCharType(SpecCaptcha.TYPE_DEFAULT);
        String code = specCaptcha.text().toLowerCase();
        String key = RedisConstant.ADMIN_LOGIN_PREFIX + UUID.randomUUID();//准备key
        String image = specCaptcha.toBase64();
        redisTemplate.opsForValue().set(key, code, RedisConstant.ADMIN_LOGIN_CAPTCHA_TTL_SEC, TimeUnit.MINUTES);

        return new CaptchaVo(image, key);
    }

    @Override
    public String login(LoginVo loginVo) {
        if (StringUtils.isBlank(loginVo.getCaptchaCode())) {
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_NOT_FOUND);
        }
        String code = redisTemplate.opsForValue().get(loginVo.getCaptchaKey());//先看存不存在再看正不正确
        if (code == null) {
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_EXPIRED);
        }
        if (!code.equalsIgnoreCase(loginVo.getCaptchaCode())) {
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_ERROR);
        }
        //查看用户是否存在
        SystemUser systemUser = systemUserMapper.selectOne(new LambdaQueryWrapper<SystemUser>().eq(SystemUser::getUsername, loginVo.getUsername()));
        if (systemUser == null) {
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_NOT_EXIST_ERROR);
        }
        //查看用户是否beifengji
        if (systemUser.getStatus() == BaseStatus.DISABLE) {
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_DISABLED_ERROR);
        }
        if (systemUser.getPassword().equals(loginVo.getPassword())) {
            //登录成功
            return JwtUtil.createToken(systemUser.getId(), systemUser.getName());
        } else {
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_ERROR);
        }


    }
}
